Seal for receptacles.



H. B. SMITH.

SEAL FOR HECEPTACLES.

APPLICATION FILED 1ULY 5, I9I1.

Patented Dec. 17, 1918.

WITNESSES villustrating the present invention,

HARRISON B. SMITH, 0F BAYSIDE, NEW YORK.

SEAL FOR RECEPTACLES.

mesme.

Specification of Letters Patent.

Patented Dec. 17, 1918.

Application filed ITuly 5, 1917. Serial No. 178,689.

To all whom t may concern:

Be it known that I, HARRISON B. SMITH, a citizen of the United States, residin at Bayside, in the county of Flushing and tate of New York, have invented new and useful Improvements in Seals for Receptacles, of which the following is a specification.

This invention relates to seals or closures for receptacles such as bottles, jars and the like. The object of the present invention is to provide a seal in the form of a cap, which is of simple, cheap .and effective construction and adapted to be used repeatedly for hermetically closing the mouth of such receptacle, and also adapted to' be readily applied and removed without the use of tools or other implements.

A further object of the invention is to produce 'a stopper 0r cap of the type referred to which by reason of its resiliency will readily accommodate itself to variations in the size of the necks of receptacles and which will obtain a secure friotional hold or retaining .tit on the neck of the receptacle such as will prevent the displacement of the cap except when properlymanipulated in the manner hereinafter described.

With the above and other objects in View, the .invention consists in the novel construction, combination and arrangement of parts, herein fully described, illustrated and claimed. l

In the accompanying drawings Figure l is a side elevation of the neck of a receptacle showing the improved seal or cap in its applied relation thereto.

' Fig. 2 is a central vertical section through the same.

F ig. 3 is a view similar to F ig; 2 illustrating the mode of application and removal of the cap.

Fig. 4 is a perspective view of the improved cap detached.

Referring to the drawings, the mouth or neck portion of a other receptacle provided with annular head2 immediately below the rim edge thereof for cooperation with a sheet metal closure cap 3. While a receptacle of this character is shown for the purpose of any other type of receptacle having a bead or projection of a suitable character may be employed.

The cap 3 is provided with a 1, designates bottle, jar or an external flange 4 ofless diameter than the beaded portion of the -neck Aand which is suilclenfly 'resilient to be sprung-into engagement with the bead. The cap as a whole may be made of any resilient sheetvmetal of any suitabley gage or thickness, and is formed with an annular or circumferential seat 5 adapted to receive the bead 2 as clearly indicated in the drawings.

bead to interlock with the latter and close the mouth of the receptacle. It will' be ob'- served that in this way the cap may be applied without the use of a tool and will be firmly and securely held in position against any possibility of casual displacen'lent while atthe same time the resiliency of the flange will allow the cap to be readily removed without the use of a tool by tilting the cap at an angle while pressing the same off the neck of the receptacle.

The cap ordinarily7 contains a resilient compressi'ble disk 6 of such material as cork. rufbfber, paper, or felt, or any other -material having a springy, yielda'ble or cushioning i character. By the expansive action of said resilient disk, a firm frictional hold or grip is obtained .between th'e cap and the bead of the receptacle throughout the circumference of the bead.

The cap may be employed in conjunction wit` anysuitable lining or sealing disk 6 of any ordinary or suitable type 'for the purpose of hermetically y but is preferably used in conjunction with the type ofv disk referredv to and herein shown, thus providing for an absolutely air and liquid tight closure of the neck of the receptacle. The elasticity `of the cap readily adapts it to be applied and removed and to accommodate itself to necks and the beads thereof varying somewhat in size or having irregularities in the surface thereof.

The flange 4 of the'cap need extend only a suiiicient distance below the annular seat 5 and the bead 2 to provide for reducing the diameter of the flange below said bead for the purpose of obtaining a continuous or endless shoulder which binds against the closing the receptacle,'v

tu point around l bead or projection, l5 ent circumferential bottom of the bead and serves to frictionally retain the cap in place. This reduces the amount of material in the cap, enables thinner material to be used in the formation I5 of the cap, reduces the cost ofthe cap, and

renders the manufacture thereof easier and cheaper. It further adds to the ease of removing' and replacing the cap and avoids the necessity of selecting any particular the cap upon which to exert force either in applying or removing the cap.

I claim A cap for receptacles having an external said cap having a resiliflange of less normal diameter than the beaded portion of the receptacle and formed immediately above said flange with an annular uninterrupted out- Lasaaae standing1 channel, said channel loeing adapted to receive the bead at any part of said channel to permit the cap to loe placed at an angle upon the mouth of the receptacle, the coperation of the bead and' channel in such engagement reducing the distance between that portion of the flange' underlying such engaged portion of the channel and the diametrically opposite side of the bead, to permit the cap to be sprung downward to cause the flange to engage beneath the bead throughout the full circumferential length of the bead and flange, and a compressible disk to loe held in the. cap and compressed against the mouth of the receptacle in the final seating' of the cap.

ln testimony whereof l affix my signature.

HARRISON B.' SMITH. 

